@article{ref1,
title="Fractures about the hip in the elderly indigent patient. I. Epidemiology",
journal="Geriatrics",
year="1968",
author="Niemann, K. M. and Mankin, H. J.",
volume="23",
number="10",
pages="150-158",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0016-867X",
doi="",
url="http://dx.doi.org/"
}